Classification
P - Language and Literature
118,088
M - Music
3,257
H - Social Science
2,043
D - World History
1,970
Q - Science
1,959
B - Philosophy, Psychology, Religion
1,291
A - General Works
1,281
K - Law
1,222
F - General American History
987
R - Medicine
723
J - Political Science
607
T - Technology
424
E - United States History
392
C - Historical Sciences
334
N - Fine Arts
288
G - Geography, Anthropology, Recreation
218
S - Agriculture
215
Z - Library Science
123
L - Education
113
U - Military Science
52
V - Naval Science
20